Hi all, I ran OST manually with suite he-basic-master, and it failed at a rather late stage (010_local_maintenance_cli. My changes were for 008_restart_he_vm, which passed). It failed because the hosted-engine VM was already on host-1, which wasn't expected. I spent quite some time trying to understand this, and I *think* the root cause was quite before that. engine.log: 2020-11-25 09:48:50,864+01 INFO [org.ovirt.engine.core.bll.network.host.HostSetupNetworksCommand] (EE-ManagedThreadFactory-engine-Thread-273) [2e1072c7] Host setup networks finished. Lock released. Monitoring can run now for host 'lago-he-basic-suite-master-host-0.lago.local' from data-center 'Default' 2020-11-25 09:48:50,866+01 INFO [org.ovirt.engine.core.bll.network.host.HostSetupNetworksCommand] (EE-ManagedThreadFactory-engine-Thread-273) [2e1072c7] Lock freed to object 'EngineLock:{exclusiveLocks='[HOST_NETWORKfba14f41-7ece-46ca-af65-7476e9fd2018=HOST_NETWORK]', sharedLocks=''}' 2020-11-25 09:48:50,923+01 INFO [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-273) [2e1072c7] EVENT_ID: PERSIST_NETWORK_ON_HOST_FINISHED(1,146), (1/2): Successfully applied changes for network(s) Labeled_Network on host lago-he-basic-suite-master-host-0.lago.local. (User: admin@internal-authz) 2020-11-25 09:48:53,883+01 INFO [org.ovirt.engine.core.bll.ConcurrentChildCommandsExecutionCallback] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-47) [2e1072c7] Command 'PropagateNetworksToClusterHosts' id: '6e61f53b-c2b7-4a35-a840-67076e6d66cb' child commands '[fe7f022e-c13b-4924-a6ea-cc56407e6969, ca990d6e-199b-473d-928d-0a7e6d8cf073]' executions were completed, status 'SUCCEEDED' 2020-11-25 09:48:54,891+01 INFO [org.ovirt.engine.core.bll.network.cluster.PropagateNetworksToClusterHostsCommand] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-85) [2e1072c7] Ending command 'org.ovirt.engine.core.bll.network.cluster.PropagateNetworksToClusterHostsCommand' successfully. 2020-11-25 09:49:24,749+01 ERROR [org.ovirt.engine.core.vdsbroker.monitoring.HostMonitoring] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-92) [] Failure on checkInterfaces on update runtime info for host 'lago-he-basic-suite-master-host-0.lago.local': PreparedStatementCallback; uncategorized SQLException for SQL [select * from getallnetworkbyclusterid(?, ?, ?)]; SQL state [null]; error code [0]; IJ031013: Interrupted attempting lock: org.jboss.jca.adapters.jdbc.local.LocalManagedConnection@7d88842; nested exception is java.sql.SQLException: IJ031013: Interrupted attempting lock: org.jboss.jca.adapters.jdbc.local.LocalManagedConnection@7d88842 2020-11-25 09:49:24,752+01 ERROR [org.ovirt.engine.core.vdsbroker.monitoring.HostMonitoring] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-92) [] ResourceManager::refreshVdsRunTimeInfo: host=lago-he-basic-suite-master-host-0.lago.local(fba14f41-7ece-46ca-af65-7476e9fd2018): PreparedStatementCallback; uncategorized SQLException for SQL [select * from getvdsdynamicbyvdsid(?)]; SQL state [null]; error code [0]; IJ031013: Interrupted attempting lock: org.jboss.jca.adapters.jdbc.local.LocalManagedConnection@7d88842; nested exception is java.sql.SQLException: IJ031013: Interrupted attempting lock: org.jboss.jca.adapters.jdbc.local.LocalManagedConnection@7d88842 2020-11-25 09:49:24,761+01 ERROR [org.ovirt.engine.core.vdsbroker.VdsManager] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-92) [] Timer update runtime info failed. Exception: SQLException: IJ031013: Interrupted attempting lock: org.jboss.jca.adapters.jdbc.local.LocalManagedConnection@7d88842 Any idea?